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Copyright © 1997 Cisco Systems, Inc.
6-95CSE: Networking Fundamentals — WAN Basics
© 1999, Cisco Systems, Inc.
www.cisco.com
Separate “Conform” and
“Exceed” Actions
Coloring Engine
Coloring the Packets
Coloring the Packets
•Color closer to the application
•Set the DSCP (DiffServ Code Point) at the edge
of network
•Avoid host application-based coloring
VolP
VolP HTTP
FTP
FTP
Gold Class
Bronze Class
Platinum Class
VolP
VolP
HTTP
FTP
FTP
VolP
VolP
HTTP
HTTP
FTP
FTP
6-96CSE: Networking Fundamentals — WAN Basics
© 1999, Cisco Systems, Inc.
www.cisco.com
Step 3: Define Policies
for the Classes
Step 3: Define Policies
for the Classes
• Guarantee minimum
bandwidth
• Set maximum
bandwidth limits
• Assign priorities to
each class
• Manage congestion
When there is
congestion, deliver
gold traffic and drop
bronze traffic
“
”
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